EP2980962A4 - Electric machine - Google Patents

Electric machine Download PDF

Info

Publication number
EP2980962A4
EP2980962A4 EP14785383.2A EP14785383A EP2980962A4 EP 2980962 A4 EP2980962 A4 EP 2980962A4 EP 14785383 A EP14785383 A EP 14785383A EP 2980962 A4 EP2980962 A4 EP 2980962A4
Authority
EP
European Patent Office
Prior art keywords
electric machine
electric
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14785383.2A
Other languages
German (de)
French (fr)
Other versions
EP2980962B1 (en
EP2980962A2 (en
Inventor
Natsuki WATANABE
Teiichirou Chiba
Yasuhiko Matsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of EP2980962A2 publication Critical patent/EP2980962A2/en
Publication of EP2980962A4 publication Critical patent/EP2980962A4/en
Application granted granted Critical
Publication of EP2980962B1 publication Critical patent/EP2980962B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H02K21/046—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with rotating permanent magnets and stationary field winding
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
EP14785383.2A 2014-06-06 2014-06-06 Electric machine Active EP2980962B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/065066 WO2014171558A2 (en) 2014-06-06 2014-06-06 Electric machine

Publications (3)

Publication Number Publication Date
EP2980962A2 EP2980962A2 (en) 2016-02-03
EP2980962A4 true EP2980962A4 (en) 2017-03-01
EP2980962B1 EP2980962B1 (en) 2020-04-29

Family

ID=51731934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14785383.2A Active EP2980962B1 (en) 2014-06-06 2014-06-06 Electric machine

Country Status (4)

Country Link
US (1) US10211688B2 (en)
EP (1) EP2980962B1 (en)
CN (1) CN105379070A (en)
WO (1) WO2014171558A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106716799B (en) * 2014-09-11 2019-05-10 日产自动车株式会社 Permasyn morot
JP2016082696A (en) * 2014-10-16 2016-05-16 アイシン精機株式会社 Embedded magnet motor, and rotor for embedded magnet motor
DE112017004016T5 (en) * 2016-08-09 2019-05-02 Nidec Corporation ENGINE
CN107819365B (en) * 2016-09-13 2019-06-14 南京德朔实业有限公司 Rotor punching
CN106571699A (en) * 2016-10-13 2017-04-19 珠海格力节能环保制冷技术研究中心有限公司 Driving motor and electromobile
CN106787318A (en) * 2016-12-28 2017-05-31 卧龙电气集团股份有限公司 Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor
CN110832755B (en) * 2017-07-05 2023-02-17 三菱电机株式会社 Rotating electrical machine
FR3071370B1 (en) * 2017-09-18 2019-09-13 IFP Energies Nouvelles ISTHMA OF MAGNETIC BRIDGES OF AN ELECTRIC MACHINE ROTOR
US11476733B2 (en) * 2019-11-01 2022-10-18 GM Global Technology Operations LLC Electric machine with forced convection-based rotor cooling of rotor magnets
GB2590677B (en) * 2019-12-23 2023-09-27 Dyson Technology Ltd A motor core
DE102020106341B4 (en) * 2020-03-09 2022-08-04 Audi Aktiengesellschaft electrical machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070052313A1 (en) * 2005-09-07 2007-03-08 Kabushiki Kaisha Toshiba Rotating electrical machine
EP1953896A1 (en) * 2005-11-09 2008-08-06 Kabushiki Kaisha Toshiba Rotor for electric rotating machine and electric rotating machine
US20120206007A1 (en) * 2010-06-14 2012-08-16 Toyota Jidosha Kabushiki Kaisha Rotor core for rotating electrical machine, and manufacturing method thereof
US20120223607A1 (en) * 2011-03-03 2012-09-06 Denso Corporation Electric rotating machine

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4005988B2 (en) 2004-07-15 2007-11-14 三菱電機株式会社 Rotating electrical machine rotor
JP4867194B2 (en) 2005-04-28 2012-02-01 トヨタ自動車株式会社 Rotor
JP4660406B2 (en) * 2005-09-07 2011-03-30 株式会社東芝 Rotating electric machine
JP4131276B2 (en) * 2005-12-19 2008-08-13 ダイキン工業株式会社 Electric motor and its rotor and magnetic core for rotor
JP4842670B2 (en) 2006-02-27 2011-12-21 トヨタ自動車株式会社 Rotor and electric vehicle
US7923881B2 (en) * 2007-05-04 2011-04-12 A.O. Smith Corporation Interior permanent magnet motor and rotor
JP5373370B2 (en) 2007-11-28 2013-12-18 アスモ株式会社 Embedded magnet type motor
US7800272B2 (en) 2007-11-28 2010-09-21 Asmo Co., Ltd. Embedded magnet motor and manufacturing method of the same
JP2009171785A (en) * 2008-01-18 2009-07-30 Toyota Motor Corp Dynamo-electric machine
JP5452892B2 (en) 2008-06-17 2014-03-26 本田技研工業株式会社 Permanent magnet motor
JP5443778B2 (en) 2009-01-30 2014-03-19 東芝産業機器製造株式会社 Rotor of permanent magnet type rotating electric machine and rotating electric machine thereof
JP5542423B2 (en) * 2009-12-22 2014-07-09 東芝産業機器システム株式会社 Rotating electric machine rotor and rotating electric machine
US8674574B2 (en) * 2011-03-30 2014-03-18 GM Global Technology Operations LLC Rotor assembly with cooling mechanism
JP2013017297A (en) 2011-07-04 2013-01-24 Toyota Motor Corp Rotor of rotary electric machine
JP2013021811A (en) * 2011-07-11 2013-01-31 Toyota Motor Corp Rotor of rotary electric machine
KR20130019088A (en) * 2011-08-16 2013-02-26 엘지이노텍 주식회사 Rotor core of motor
JP2014064471A (en) * 2014-01-17 2014-04-10 Nippon Soken Inc Rotary electric machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070052313A1 (en) * 2005-09-07 2007-03-08 Kabushiki Kaisha Toshiba Rotating electrical machine
EP1953896A1 (en) * 2005-11-09 2008-08-06 Kabushiki Kaisha Toshiba Rotor for electric rotating machine and electric rotating machine
US20120206007A1 (en) * 2010-06-14 2012-08-16 Toyota Jidosha Kabushiki Kaisha Rotor core for rotating electrical machine, and manufacturing method thereof
US20120223607A1 (en) * 2011-03-03 2012-09-06 Denso Corporation Electric rotating machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014171558A2 *

Also Published As

Publication number Publication date
WO2014171558A3 (en) 2014-12-11
US20160301268A1 (en) 2016-10-13
CN105379070A (en) 2016-03-02
EP2980962B1 (en) 2020-04-29
US10211688B2 (en) 2019-02-19
WO2014171558A2 (en) 2014-10-23
EP2980962A2 (en) 2016-02-03

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